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Author SHA1 Message Date
Yangqing Jia
8286ce1e3a Re-license to Apache 
Summary: Closes https://github.com/caffe2/caffe2/pull/1260

Differential Revision: D5906739

Pulled By: Yangqing

fbshipit-source-id: e482ba9ba60b5337d9165f28f7ec68d4518a0902
 2017-09-28 16:22:00 -07:00
Yangqing Jia
2c6a579859 Make all convolution operators allow optional bias term 
Summary:
It used to be that only the cudnn engine supports it, and now it should be
fully supported by any conv engine.

To ignore bias, simply use a convolution op that has two inputs instead of
3. The gradient operator will automatically figure out that it does not
compute the bias gradient.

Reviewed By: prigoyal

Differential Revision: D4354183

fbshipit-source-id: cf71b6289a254d15a6a663a85df63fbbaec3702b
 2016-12-21 15:14:24 -08:00
Yangqing Jia
6abf5c99dc Implement group convolution in the cudnn interface. 
Summary:
This is an ongoing work - currently the forward pass is implemented, but backward
is yet to be done. We might want a CPU counterpart as well.

I will wait for D4341288 to land and then make bias optional.

Reviewed By: prigoyal

Differential Revision: D4342210

fbshipit-source-id: 51bb0e98d917970bdc040d076b535beb8e994d9a
 2016-12-20 13:44:44 -08:00